Improvement in machines for making cord



SARAH A; BQARDMAN.

Improvement in Machine-51m makngCord.

No. 118,426. l Patented Aug. 29,1871,

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Witnesses. f/i

Inventor.

UNITED STATES PATENT OEEICE.

SARAH A. BOARDMAN, OF LANCASTER TOWNSHIP, PENNSYLVANIA, ADMINIS TRATRIX OF HARRIS BOARDMAN, DEOEASED.

IMPROVEMENT IN MACHINES FOR MAKING CORD.

Specification forming part of Letters Patent No. 118,426, dated August 29, 1871.

To all whom it may concern:

Be it known that HARRIS BOARDMAN, of Lancaster, in the State of Pennsylvania, has made Improvements on a certain Machine for Making Oord, and for which Letters Patent were granted to him, dated the 2d day of February, 1869, No. 86,497, of which the following is a specification of said improvements.

The nature of the additional improvements relates to the arrangement of three curved and hook-ended levers on a central pivot in a bracket around the main or central shaft, above the spindles, so as to adjust the tension of the strands automatically, also introducing a pair of tensionpulleys on the spindles made adjustable, and a new arrangement to give the proper tension to each individual thread as it leaves the bobbins, and the stop or tripper-wires for disengaging the drop-rod to stop the machine when a' thread breaks, as also in the guides. The combined action secures a perfect unity of tension in each thread and combination of threads, and the result is a more uniform and stron ger cord.

The accompanying drawing illustrates the several improvements.

Figure 1, A shows the central or main shaft in part 5 B, one of the three spindles with the improvements in place. Fig. 2 shows the trian gular disk O, which supports the three brackets G, on which the levers D are secured by a pivotscrew, d, centrally; also flanged or boxed bearings F, with adjusting-apertures f for the support of the spindle-heads or slotted arms E to each spindle B. e is a set or binding-screw, X, the opening for the drop-rod R with its cross-slot for the passage of the cross-pin 1' on the rod. Fig. 3 shows the upper face and circumference of the disk L, and position of the wires or trippers M. A partial sectional View is also given. Fig. 4 shows the six bobbin-guides and appliances, also a partial section.

In addition to what has already been said, a brief explanation will enable any one skilled in the art to make and use said invention.

The gearings on the main or central shaft and motion and position of the bobbin-disks are es sentially the same as in the former patent, and need not be shown or described. I will simply refer to said improvements. The hook ends of the curved levers D overlap each other and come outside of the central opening in the spindles,

B. Fig. 1 shows the threads as they come om the bobbins w, through the ring-guides U, passing under a band of felting, or its equivalent, o, through the eye 'n (Fig. 3) in the disk L, thence, by a half turn around the spindle B, the six threads from the several bobbins are collectively passed through an eye, Q, from whence they are carried over the pulley H, and down in front around pulley I and up into an opening or eye, b, in the spindle B, passing out centrally on the top, and thence outward and brought over the junction ofthe overlapping levers D. A uniform a`c tion will suffer the levers to remain at rest; but if, from some cause, any strand of threads should happen to draw stronger, these levers being on a central pivot, the consequence is a counter-action would take place at the other junctions, and the unity of the tension remain undisturbed as the same are being fed onto the twisting and reeling operation. The guard-rings U, or guides to prevent the thread from one bobbin to tangle with that of an adjoining one, have a stem lying between a pair of lugs, t; this stem has the end bent at right angles, and is passed through a perforation in the lug u, forming a hinge to raise them up,supported on a collar or disk,T, on each spindle B. The disk L has a sectional flange, P, on the under side for the band o, and perforated nipples m for the wire-trippers M; these wires are placed diagonally across the top, projecting forward and terminated by a hook end bent out and under, and are heldin place by the thread from its respective bobbin. The wire is centrally bent vertically and passed through the nipple m, from which it is inclined downward with a prolonged end, which aifords a counter-balance.

The operation is so that when a thread breaks the centrifugal force will throw the trippers out against a checking, N, and bring it in a straight line from its pivot, causing it to come in contact with the arm s, attached to the drop-rod R, giving it a turn, so that the cross-pin 1' will pass through the cross-slot X in the disk C aforesaid. The tension-pulleys H I are in bearings J, affixed centrally through these bearings to the spindles B by a bolt and adjusting-screw, K, by which their action or tension can be adjusted. Adjusting-screws Y are also shown to the collars of the several disks. The operation of the several parts is sufciently explained. There is a change in the gearing which adds greatly to the compactness and efficacy of the machine, but substantially the shown, for the purpose mentioned. Y Y n 3. The combination with spindle B Vand disk'T,

With its double lugs t t to prevent lateral motion,

and the perforated lug u forming a hinge for the end of the stem on the guard or guide-rings U, in the manner set forth.

4. In combination with the spindle B, the arrangement ofthe tension-pulleys H I, which have their bearings in a pair of plates, J, which plates are attached centrally between the pulleys by a bolt With a screw end and nut, K, for regulating the pressure of the plates on the pulleys, substantially in the manner shown and for the purpose mentioned.

SARAH A. BOARDMAN, Ad. foeA Harris Boardman, deceased. Wtnessses; Y Y Y W. B. WILEY,

JACOB STAUFFER. 

